U.S. patent number 8,485,608 [Application Number 12/998,276] was granted by the patent office on 2013-07-16 for heading or extraction machine.
This patent grant is currently assigned to Sandvik Mining and Construction G.m.b.H.. The grantee listed for this patent is Egmont Lammer, Manfred Meier. Invention is credited to Egmont Lammer, Manfred Meier.
United States Patent |
8,485,608 |
Meier , et al. |
July 16, 2013 |
Heading or extraction machine
Abstract
In a heading or extraction machine (1) including extraction
tools that are movable over the working face, and track walling
devices such as anchor drilling and setting devices (9), the
machine (1) comprises a platform (6) that is displaceable in the
longitudinal direction of the machine and carries at least two
track walling devices each mounted to be separately displaceable
relative to the platform (6).
Inventors: |
Meier; Manfred (Fohnsdorf,
AT), Lammer; Egmont (Knittelfeld, AT) |
Applicant: |
Name |
City |
State |
Country |
Type |
Meier; Manfred
Lammer; Egmont |
Fohnsdorf
Knittelfeld |
N/A
N/A |
AT
AT |
|
|
Assignee: |
Sandvik Mining and Construction
G.m.b.H. (Zeltweg, AT)
|
Family
ID: |
42077767 |
Appl.
No.: |
12/998,276 |
Filed: |
October 23, 2009 |
PCT
Filed: |
October 23, 2009 |
PCT No.: |
PCT/AT2009/000415 |
371(c)(1),(2),(4) Date: |
April 05, 2011 |
PCT
Pub. No.: |
WO2010/048650 |
PCT
Pub. Date: |
May 06, 2010 |
Prior Publication Data
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|
|
Document
Identifier |
Publication Date |
|
US 20110193398 A1 |
Aug 11, 2011 |
|
Foreign Application Priority Data
|
|
|
|
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Oct 28, 2008 [AT] |
|
|
A 1679/2008 |
|
Current U.S.
Class: |
299/75;
405/150.2; 299/73; 299/11; 405/148 |
Current CPC
Class: |
E21C
27/00 (20130101); E21D 20/021 (20130101); E21D
11/403 (20130101) |
Current International
Class: |
E21C
25/06 (20060101); E21D 21/00 (20060101) |
Field of
Search: |
;299/11,73,74,75,29,95
;405/146,148,150.1,150.2 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
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413 230 |
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Dec 2005 |
|
AT |
|
2 208 710 |
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Sep 1973 |
|
DE |
|
26 21 674 |
|
Nov 1977 |
|
DE |
|
31 03 694 |
|
Sep 1982 |
|
DE |
|
103 46 583 |
|
May 2005 |
|
DE |
|
10 2006 049 060 |
|
Apr 2008 |
|
DE |
|
0 037 807 |
|
Oct 1981 |
|
EP |
|
1 298 283 |
|
Apr 2003 |
|
EP |
|
62-268492 |
|
Nov 1987 |
|
JP |
|
WO 88/09426 |
|
Dec 1988 |
|
WO |
|
Primary Examiner: Bagnell; David
Assistant Examiner: Goodwin; Michael
Attorney, Agent or Firm: Chapman and Cutler LLP
Claims
The invention claimed is:
1. A heading or extraction machine including extraction tools that
are movable over a working face, wherein the machine comprises a
platform (6) that is displaceable in a longitudinal direction of
the machine relative to the machine and carries at least two track
walling devices each mounted to be separately displaceable relative
to the platform (6) along a displacement path, wherein the
displacement paths of the at least two track walling devices extend
parallel to each other and in the longitudinal direction of the
machine.
2. A heading or extraction machine according to claim 1, wherein
the at least two displaceably mounted track walling devices
comprise at least two different types of track walling devices.
3. A heading or extraction machine according to claim 2, wherein a
first one of the track walling devices is an anchor drilling and
setting device (9), and a second one of the track walling devices
is fixed to a support arm, and is an operator stand (11) or a
shotcrete manipulator (10).
4. A heading or extraction machine according to claim 3, wherein a
further track walling device is a manipulation device for walling
elements.
5. A heading or extraction machine according to claim 4, wherein
the manipulation device for walling elements comprises a pivot
mechanism (12) for pivoting walling elements from a rear side of
the machine to a mounting site for the walling elements.
6. A heading or extraction machine according to claim 4, wherein
the support arm for the operating stand (11) or the shotcrete
manipulator (10), and the manipulation device for walling elements,
are arranged on a common displaceable console.
7. A heading or extraction machine according to claim 1, wherein
displaceable mounting of the track walling devices comprises at
least two slide guides.
8. A heading or extraction machine according to claim 1, wherein
the at least two track walling devices are configured to be
pivotable from an operating position into a parking position in
which the track walling devices are located substantially within an
outline of the heading or extraction machine (1).
9. A heading or extraction machine according to claim 1, wherein
the platform (6) displaceable in the longitudinal direction of the
machine is dimensioned such that, in a retracted position, the
platform (6) reaches substantially from a rear end of the machine
to a pivot arm for the extraction tools in the longitudinal
direction of the machine, and the platform (6) occupies at least
one half of a width of the machine in a transverse direction of the
machine.
10. A heading or extraction machine according to claim 1, further
comprising an operator cabin mounted to be displaceable in the
longitudinal direction of the machine.
11. A heading or extraction machine according to claim 1, further
comprising a displacement drive used for displacing the track
walling devices relative to the platform (6), said displacement
drive comprising at least one chain drive.
12. A heading or extraction machine according to claim 1, wherein
the platform (6) displaceable in the longitudinal direction of the
machine is dimensioned such that, in a retracted position, the
platform (6) reaches substantially from a rear end of the machine
to a pivot arm for the extraction tools in the longitudinal
direction of the machine, and the platform (6) occupies at least
two-thirds of a width of the machine in a transverse direction of
the machine.
13. A heading or extraction machine according to claim 2, wherein
displaceable mounting of the track walling devices comprises at
least two slide guides.
14. A heading or extraction machine according to claim 3, wherein
displaceable mounting of the track walling devices comprises at
least two slide guides.
15. A heading or extraction machine according to claim 4, wherein
displaceable mounting of the track walling devices comprises at
least two slide guides.
16. A heading or extraction machine according to claim 2, wherein
the at least two track walling devices are configured to be
pivotable from an operating position into a parking position in
which the track walling devices are located substantially within an
outline of the heading or extraction machine (1).
17. A heading or extraction machine according to claim 3, wherein
the at least two track walling devices are configured to be
pivotable from an operating position into a parking position in
which the track walling devices are located substantially within an
outline of the heading or extraction machine (1).
18. A heading or extraction machine according to claim 4, wherein
the at least two track walling devices are configured to be
pivotable from an operating position into a parking position in
which the track walling devices are located substantially within an
outline of the heading or extraction machine (1).
Description
The invention relates to a heading or extraction machine including
extraction tools that are movable over the working face, and track
walling devices such as anchor drilling and setting devices.
Heading or extraction machines of the initially defined kind have
become known in various configurations. In accordance with the
objective to secure the driven track against tumbling material,
different track securing and track walling devices have been
proposed, depending on the nature of the respective rock. From
AT-413230 B, a heading machine including an anchor platform that is
displaceable in the longitudinal direction of the machine has
become known, on which at least two anchor drilling and setting
devices are pivotally supported in the front. It is thus possible
to move the anchor drilling and setting devices for setting anchors
into a position close to the working face, while achieving a safe
support of the anchor drilling and setting devices owing to the
movable anchor platform. After having set the anchors, the anchor
drilling and setting device can be moved back again together with
the anchor platform to such an extent as to prevent a collision
with the cutter bar. In order to ensure a safe support of the
anchor platform in the position advanced to the working face, it is
proposed in AT-413230 B that the anchor platform cooperates with a
slide bearing provided on the cutter arm of the heading and
extraction machine, at least in its front region.
From EP-1298283 A1, a tunnelling machine is, moreover, known, in
which a portal-like machine frame is provided, which constitutes a
device that is separate from the tunnelling machine and supported
on the floor in a manner displaceable on rails. The machine frame,
which overlaps the tunnelling machine in a portal-like manner,
carries various means for securing the rock space, such as anchor
drilling and setting devices, working platforms for manipulating
roof support systems or support grids, as well as local shotcrete
manipulators. In that case, the machine frame can be trailed by the
heading machine by the aid of a traction means.
EP-037807 A1 discloses a heading machine including a walling means
that is displaceable on the heading machine by the aid of an
auxiliary frame, wherein the cutter bar serves as an anterior
support bearing.
When securing and walling a driven track, different types of
securing and walling devices have to be provided as a rule,
wherein, depending on the nature of the respective rock, shotcrete
manipulators or devices for manipulating and positioning walling
frames or arches are required in addition to anchor drilling and
setting devices. Conventional heading or extraction machines will
not fully meet these requirements, since the different types of
track walling devices cannot be made available without
supplementary apparatus. Thus, concrete mixing installations
including shotcrete manipulators to be dragged by the heading or
extraction machine, or separate manipulating devices for walling
elements such as walling frames or walling arches, have, for
instance, been proposed. The expenditures involved in track
securing and walling measures will, however, be considerably
increased when providing separate devices, wherein difficulties
will arise due to the constricted space conditions in the walled
track when taking walling measures also in a position immediately
behind the working face.
The invention aims to improve a heading or extraction machine of
the initially defined kind to the effect that it will also be
possible to provide different track walling devices on the driving
or extraction machine itself without using separate machines or
supporting structures to be dragged behind, in order to enhance the
flexibility, safety and efficiency of a track walling operation and
also facilitate the work of the operating personnel.
To solve this object, the driving or extraction machine of the
initially defined kind is essentially characterized in that the
machine comprises a platform that is displaceable in the
longitudinal direction of the machine and carries at least two
track walling devices each mounted to be separately displaceable
relative to the platform. By the machine comprising a platform that
is displaceable in the longitudinal direction of the machine, it
has become possible to mount suitable track walling devices on said
platform, wherein the displaceability of the platform allows for
appropriate positioning of the track walling devices. Said
displaceability of the platform relative to the machine frame, in
particular, enables the track walling devices to be positioned
close to the working face such that the respective securing and
walling measures can be performed directly on or in the working
face. Due to the fact that the displaceable platform carries at
least two track walling devices each mounted to be separately
displaceable relative to the platform, the positions of the
individual walling devices can be separately adjusted, thus
enabling the track walling devices to be each individually moved
from a parking position into an operating position, and back from
the operating position into the parking position.
In a preferred manner, the displaceably mounted track walling
devices comprise at least two track walling devices of different
types. It is thus possible to take into account different
circumstances during track walling and, in particular, carry along
further track walling devices on the machine frame besides the
anchor drilling and setting devices usually arranged on a heading
or extraction machine, whereby also these track walling devices
will be ready for operation and available in positions adjacent the
working face. In this context, it is provided in a preferred manner
that one of the track walling devices is formed by an anchor
drilling and setting device and a further one of the track walling
devices is formed by an operator stand fixed to a support arm,
and/or a shotcrete manipulator. Such a combination of track walling
devices allows for the application of shotcrete immediately after
the setting of anchors, for instance on the roof, in order to
provide additional track safety. The operator stand in this case is
fixed to a preferably extractable and pivotable support arm and
optionally also carries the shotcrete manipulator. An operator in
the operator stand can thus take the necessary measures in a
position immediately adjacent the anchor drilling and setting
device, wherein the shotcrete manipulator is usually operated from
a more remote location. The operator stand is also suitable for
controlling and monitoring possible further walling measures such
as, for instance, the insertion of walling frames. By the support
arm being displaceably mounted on the platform along with the
shotcrete manipulator, the shotcrete can be applied over a length
corresponding to the displacement range, wherein the position of
the heading and extraction machine itself need not be changed for
this purpose.
According to a preferred further development, a further track
walling device is formed by a manipulation device for walling
elements and, in particular, walling arches, the manipulation
device for walling elements preferably comprising a pivot mechanism
for pivoting walling elements from the rear side of the machine to
the mounting site. In this respect, walling elements may, for
instance, be provided in the form of walling frames or walling
arches, which are kept in stock behind the heading or extraction
machine during heading and, among other things, serve to support
the track. Due to the fact that the movable platform of the heading
and extraction machine comprises a pivot mechanism for pivoting
walling elements from the rear side of the machine to the mounting
site, prepared and partially mounted walling arches can be readily
transported to a place located nearer to the working face for the
purpose of supporting the roof.
In order to enable as large a number of track walling devices to be
arranged on the movable platform provided according to the
invention and, in particular, to be displaceably arranged on said
platform, an accordingly large number of displacement means are
naturally required on the platform. Since, on the other hand, the
individual track walling devices will not necessarily be used all
at the same time, it may be proceeded, in the context of a
preferred further development of the invention, such that at least
two track walling devices are arranged on the platform, on a common
displaceable console. It may, in particular, be provided that the
support arm for the operating stand and/or the shotcrete
manipulator, and the manipulation device for walling elements are
arranged on a common displaceable console.
In a particularly simple manner, the configuration is preferably
devised such that the displaceable mounting of the track walling
devices is formed by at least two slide guides, wherein the
displacement paths of the at least two track walling devices
mounted to be displaceable relative to the platform advantageously
extend parallel to each other and preferably in the longitudinal
direction of the machine. The fact that the displacement paths
extend in the longitudinal direction of the machine enables
particularly advantageous positioning of the track walling devices,
wherein both positioning near the working face and positioning
remote from the working face are feasible.
The displacement drive used for displacing the track walling
devices relative to the platform in this case is preferably formed
by at least one chain drive. Chain drives have proved to be
particularly reliable and advantageous in this context.
During the advancement of the heading or extraction machine, and
during its displacement within the track, the heading or extraction
machine has to be maneuverable to a sufficient extent, wherein the
dimensions of the heading or extraction machine will be increased
in the vertical, longitudinal and transverse directions by the
track walling devices being arranged on the movable platform,
particularly if the latter are accordingly large-structured, thus
rendering maneuvering difficult. To remedy this, the configuration
is preferably further developed to the effect that the at least two
track walling devices are configured to be pivotable from an
operating position into a parking position in which the track
walling devices are located substantially within the outline of the
heading or extraction machine. Due to the pivotable mounting of the
track walling devices, the latter can be suitably swung in and
brought into a position located within the outline of the heading
or extraction machine. Such swinging-in also enables an accordingly
large reduction of the space required in the vertical direction,
thus enhancing maneuverability.
In order to arrange at least two track walling devices on the
movable platform, a suitable minimum size of the platform must, of
course, be provided. In this context, the configuration is
preferably further developed such that the platform displaceable in
the longitudinal direction of the machine has dimensions such that,
in the retracted position, it reaches substantially from the rear
end of the machine to the pivot arm for the extraction tools in the
longitudinal direction of the machine, and occupies at least one
half, preferably 2/3, of the machine width in the transverse
direction. The platform thus occupies the major portion of the
upper surface of the heading or extraction machine.
In the following, the invention will be explained in more detail by
way of an exemplary embodiment schematically illustrated in the
drawing. Therein,
FIG. 1 is a perspective overall view of a heading or extraction
machine according to the present invention, in which the platform
is in a position displaced relative to the working face;
FIG. 2 is a perspective view with the platform retracted and the
track walling devices swung in;
FIG. 3 is a front view of the heading or extraction machine with
swung-in track walling devices;
FIG. 4 is a perspective detailed view of the platform
superstructure including a pivot mechanism; and
FIG. 5 is a perspective detailed view of the slide guides for the
track walling devices.
In FIG. 1, a heading or extraction machine according to the present
invention, in which extraction tools 3 are attached to a cantilever
arm 2, is denoted by 1. By 4 are denoted haulage means for the
extracted material, which is delivered to a stationary haulage
device formed, for instance, by a belt or chain conveyor, on the
rear end of the machine. The heading or extraction machine 1 is
controlled by an operator from a cabin 5. By 6 is denoted a
platform, on which two carriages 7 and 8 are displaceable
independently of each other, for instance by the aid of chain
drives. The platform 6, along with the carriages 7 and 8
displaceable on it, is in turn movable relative to the heading or
extraction machine 1 in the longitudinal direction of the machine
and, in the position displaced to the working face, is supported on
a slide bearing arranged on a cantilever arm 2. Track walling
devices comprised of anchor drilling and setting devices 9 as well
as an operating stand 11 and a shotcrete manipulator 10 are
attached to the carriages 7 and 8, respectively.
FIG. 2 depicts the machine of FIG. 1 in a position in which the
platform 6 is retracted to the rear end of the heading or
extraction machine. In this position, the extraction tools 3 can be
moved over the working face by the aid of the cantilever arm
without involving the risk of colliding with the super-structure of
the platform 6, while cutting the material to be extracted or
won.
From FIG. 3, it is apparent that the track walling devices, in the
swung-in position, do not substantially project beyond the outline
of the heading or extraction machine such that the confined space
conditions usually prevailing in a drift when moving a machine will
be accounted for.
As illustrated in FIG. 4, a pivot mechanism 12 may be mounted on a
carriage 7 or 8 in addition to the track walling devices to
transfer walling elements such as walling arches from the rear side
of the machine to the mounting site. Even the pivot mechanism 12
can be moved into a parking position, as is illustrated in FIG.
2.
From FIG. 5, it is apparent that the carriages 7 and 8 are guided
in slide guides of the platform 6, with hydraulic and electric
connections for the track walling devices being carried along in
cable guides 13.
* * * * *